135. Spire somewhat tapering; coils rather loose 



Pupoides albilahr-is (Adams) 

 (Pupoides marginatus (Say) ) 

 Spire more cylindrical; with close coils 

 Pupilla muscorum (Linn.) 



136. Shell of three or four whorls 137. 

 Shell of five or more whorls 141. 



137. Shell almost globular; shell minute 207. 

 Body whorl and aperture very large and flaring; smooth, thin shells, 



about Yj'^ high, usually found near pond edges; generally distributed 

 — Amber Snails 138. 



138. Aperture about one-half the length of the shell 



Succinea avara Say 

 Aperture longer 139. 



1 39. Shell rather dull and opaque 



Succinea campestris Say 

 Shell more translucent, shining 140. 



140. Inner side of aperture (parietal wall) almost vertical 



Oxyloma retusa (Lea) 

 Inner side of aperture more oblique 

 Succinea ovalis Say 



141. Inner side of aperture (columellar extremity) truncate or slightly rolled 



inwards 142. 



Lower inner margin of aperture slightly turned outwards 143. 



142. With about ten whorls; shell over three times as high as wide; V2" ^o 



%" long; introduced into Florida 

 Subulina octona (Brug.) 

 With less than ten whorls; shell wider in proportion to height; about 

 IV2" high; southern states 



Euglandina rosea (Fer.) Scroll Shell 

 (Glandina truncata (Gmelin) ) 



143. Shell more than three times as high as wide 144. 

 Shell lower in proportion to width 146. 



144. Shell lengthwise ribbed; about I/4" high; Florida 



Varicella gracillima (Pfciffer) 

 (Stenogyra gracillima (Pfeitfer) ) 

 Shell practically smooth; southern states 145. 



145. Whorls flattened; body whorl almost one-half as long as the shell; less 



than 1/4" high 



Cecilioides acicula (Miiller) Needle Shell 

 Whorls convex; body whorl much shorter; about V2" ^^S^ 

 Lamellaxis gracilis (Hutton) 

 (Opeas gracile (Hutton) ) 

 (Stenogyra subula (Pfeifler) ) 



130 



